公开(公告)号：JP2003293915A

公开(公告)日：2003-10-15

申请号：JP2002100704

申请日：2002-04-03

Applicant: Toyota Motor Corp ,  トヨタ自動車株式会社

Inventor： KOBAYASHI YUKIO ,  HARADA OSAMU ,  YAMAGUCHI KATSUHIKO ,  KAMIOKA KIYOSHIRO ,  NISHIGAKI TAKAHIRO ,  TOMATSURI MAMORU

IPC: B60W20/00 ,  B60K6/20 ,  B60K6/445 ,  B60W10/30 ,  F02D29/02 ,  F02D41/06 ,  F02M37/08 ,  F02N11/04 ,  F02N11/08 ,  B60K6/04

CPC classification number: Y02T10/48

Abstract: PROBLEM TO BE SOLVED: To certainly start an engine. SOLUTION: When the engine does not completely explode within a predetermined time after engine start by driving a starter motor and a fuel pump (S100 to S104), the driving of the fuel pump is stopped for a predetermined time (for example, 3 sec) and is restarted after a predetermined time (S106 to S110). The driving of the fuel pump is temporarily stopped because repeating of driving and stopping of the fuel pump frequently allows removal of a foreign matter even when the foreign matter intrudes into the fuel pump to cause a starting failure. Thus, the fuel pump is normally driven, so that the engine is started further certainly. COPYRIGHT: (C)2004,JPO

Abstract translation: 要解决的问题：一定要启动发动机。 解决方案：通过驱动起动电动机和燃料泵，发动机起动后的发动机未完全爆炸（S100〜S104），燃料泵的驱动停止规定时间（例如， 3秒），并且在预定时间之后重新开始（S106至S110）。 燃料泵的驱动暂时停止，因为即使当异物进入燃料泵而引起启动故障时，重复燃料泵的驱动和停止也频繁地允许除去异物。 因此，燃料泵通常被驱动，使得发动机进一步启动。 版权所有（C）2004，JPO

公开(公告)号：JP2006187158A

公开(公告)日：2006-07-13

申请号：JP2004380026

申请日：2004-12-28

Applicant: TOYOTA MOTOR CORP

Inventor： UECHI KENSUKE ,  KAMIOKA KIYOSHIRO ,  YAMAMOTO MASAYA ,  OKASAKA KAZUOMI

IPC: B60L7/14 ,  B60K6/445 ,  B60K6/52 ,  B60K6/54 ,  B60K6/547 ,  B60L11/14 ,  B60L50/16 ,  B60W10/00 ,  B60W10/08 ,  B60W10/10 ,  B60W10/11 ,  B60W10/115 ,  B60W10/18 ,  B60W10/184 ,  B60W20/00 ,  F16H61/04 ,  F16H61/68 ,  F16H61/684 ,  F16H61/686 ,  F16H63/50

Abstract: PROBLEM TO BE SOLVED: To suppress variation of a damping force to be generated in gear change in a transmission attached on a rotating motor under regenerative control in breaking a vehicle, and to more smoothly perform gear change in the transmission. SOLUTION: When the transmission attached to a motor under regenerative control in damping is in a Hi gear position; a regenerative rate k for regenerating the motor using the kinetic energy of the vehicle as power is set at a value k2 smaller than a value k1 at which the transmission is in a Lo state (S170), and the motor and a hydraulic brake are controlled (S210-S250). Thus, since a torque for replacing the damping torque of the motor with a breaking torque Tb* is reduced in gear change in the transmission, variation in torque (variation in damping force) can be suppressed which may be generated in replacing the damping torque with the breaking torque Tb*, and the gear change in the transmission can be smoothly performed. COPYRIGHT: (C)2006,JPO&NCIPI

公开(公告)号：JP2004011623A

公开(公告)日：2004-01-15

申请号：JP2002170587

申请日：2002-06-11

Applicant: TOYOTA MOTOR CORP

Inventor： TOMATSURI MAMORU ,  HARADA OSAMU ,  KOBAYASHI YUKIO ,  YAMAGUCHI KATSUHIKO ,  KAMIOKA KIYOSHIRO ,  NISHIGAKI TAKAHIRO

IPC: F01P3/20 ,  F01P7/16

Abstract: PROBLEM TO BE SOLVED: To provide a cooling device for an internal combustion engine which prevents a sudden temperature fall of cooling water circulating in the internal combustion engine. SOLUTION: A warming-up control means 50 controls a pump 38 for a heat accumulation tank and a three-way selector valve 30 and warms up the engine by supplying the hot cooling water pooled in the heat accumulation tank 36 to the engine 10. When temperature of the cooling water returned from a heater core 44 to the engine 10 is below that of the cooling water discharged from the heat accumulation tank 36, the warming-up control means 50 controls the three-way selector valve 30 and adjusts a flow rate of the cooling water circulating through the heater core 44 and the engine 10 below a predetermined flow rate. COPYRIGHT: (C)2004,JPO

公开(公告)号：JP2002130032A

公开(公告)日：2002-05-09

申请号：JP2000330407

申请日：2000-10-30

Applicant: TOYOTA MOTOR CORP ,  DENSO CORP

Inventor： YAMAGUCHI KATSUHIKO ,  KOBAYASHI YUKIO ,  HARADA OSAMU ,  KAMIOKA KIYOSHIRO ,  NISHIGAKI TAKAHIRO ,  KAWABATA TAKESHI ,  YAMAMOTO KENJI

IPC: F02D45/00 ,  F02D29/00 ,  F02D41/14 ,  F02D41/16

Abstract: PROBLEM TO BE SOLVED: To provide a rotation speed control device for an internal combustion engine favorably controlling the rotation speed, even if performing a feedback control of the rotation speed of the internal combustion engine in a condition directly connected to a driving wheel. SOLUTION: In a driving system of a hybrid vehicle, a crankshaft 10a of the internal combustion engine 10 is directly connected to the driving wheel 15 via a power division mechanism 13. An ECU 16 performs the feedback control of the rotation speed by regulating the throttle opening using a feedback correction term eqi calculated according to a deviation between the actual rotation speed ene and the target rotation speed entcal of the internal combustion engine 10. Wherein the ECU 16 finds feedback correction terms eqi1-eqi3 for every three operation regions divided according to the car speed so as to control the rotation speed using the feedback correction term in the operation region corresponding to the car speed at that time.

公开(公告)号：JPH0874587A

公开(公告)日：1996-03-19

申请号：JP21510194

申请日：1994-09-08

Applicant: TOYOTA MOTOR CORP

Inventor： KAMIOKA KIYOSHIRO ,  NINOMIYA MASAHITO

IPC: F02D45/00 ,  F02B37/12 ,  F02B37/18

Abstract: PURPOSE: To prevent such a possible that a catalyzer might come to an undue temperature rise due to the effect of supercharging in time of a misfire occurrence, in such a constitution that there is no fuel-cut immediately after the misfire has happened. CONSTITUTION: Fuel is fed to a combustion chamber 4 of an engine 1 by an injector 11. Air to be fed to the combustion chamber from an intake passage 6 is supercharged by a supercharger 21. Exhaust gas to be exhausted to an exhaust passage 7 from the combustion chamber 4 is purified by a three-way catalyst. In this engine 1, when the generation rate of a misfire in the combustion chamber 4 grows larger to some extent, a supply of fuel by the injector 11 is cut off. Supercharging by the supercharger 21 is controlled according to a driving state of the engine 1. Here, the misfire happening in the combustion chamber 4 is detected by a crank angle sensor 46 or the like. An electronic control unit(ECU) 50 opens an air bypass valve(ABV) 32 at the time of judging the generation of the misfire on the basis of the detected result of the sensor 46 and restricts the operation of the supercharger 21, whereby the supercharging is reduced at once.

公开(公告)号：JP2003148202A

公开(公告)日：2003-05-21

申请号：JP2001341065

申请日：2001-11-06

Applicant: TOYOTA MOTOR CORP

Inventor： KAMIOKA KIYOSHIRO ,  YAMAGUCHI KATSUHIKO ,  KOBAYASHI YUKIO ,  HARADA OSAMU ,  NISHIGAKI TAKAHIRO ,  TOMATSURI MAMORU

IPC: F01N3/24 ,  B60K6/20 ,  B60K6/445 ,  B60W10/06 ,  B60W10/26 ,  B60W20/00 ,  F02D29/02 ,  F02D41/06 ,  F02D41/08 ,  F02D41/14

Abstract: PROBLEM TO BE SOLVED: To enable air-fuel ratio control which can make compatible both the reduction of NOx and the prevention of the generation of catalyst exhaust smell. SOLUTION: At the load operation of an engine for charging a battery during stopping, a target air-fuel ratio is made nearer to a rich side than a stoichiometric air-fuel ratio thereby carrying out the air-fuel ratio control (step S140), whereby an oxygen amount in a three-way catalyst is changed so as to be far from the generation condition of NOx, and the NOx in exhaust gas is reduced. Together with this, by carrying out the air-fuel control for a predetermined time of A second from a charge starting time (steps S130, S150), the generation of the catalyst exhaust smell due to the exhaustion of oxygen in the three-way catalyst can be prevented. Accordingly, in charging of the battery during stopping, the air-fuel ratio control which can make compatible both the reduction of NOx and the prevention of the generation of the catalyst exhaust smell is realized.

公开(公告)号：JP2002327668A

公开(公告)日：2002-11-15

申请号：JP2001133241

申请日：2001-04-27

Applicant: TOYOTA MOTOR CORP ,  DENSO CORP

Inventor： KAMIOKA KIYOSHIRO ,  YAMAGUCHI KATSUHIKO ,  KOBAYASHI YUKIO ,  HARADA OSAMU ,  NISHIGAKI TAKAHIRO ,  KAWABATA TAKESHI ,  YAMAMOTO KENJI

IPC: F02N11/08 ,  F02D45/00

Abstract: PROBLEM TO BE SOLVED: To provide a battery power distribution control device capable of smoothly performing the start of an engine by restricting the drive of an auxiliary unit in accordance with the residual capacity of power in the power supply of a vehicle. SOLUTION: The SOC, voltage, temperature, etc., of a battery are fed to a limit value calculation part 30, and the allowable battery output or battery voltage is grasped as the residual capacity of power of the battery. In accordance with the allowable battery output or battery voltage, the limit value calculation part 30 calculates the limit value of an oil pump motor 22, and the obtained value is fed to an oil pump motor control part 28. The oil pump motor control part 28 limits the torque or revolving speed of the oil pump motor 22 in accordance with the limit value. This allows securing the power supplied to a cranking motor 10, which allows the engine 12 to be started smoothly.

公开(公告)号：JP2002118902A

公开(公告)日：2002-04-19

申请号：JP2000302419

申请日：2000-10-02

Applicant: TOYOTA MOTOR CORP ,  DENSO CORP

Inventor： KOJIMA MASAKIYO ,  KAMIOKA KIYOSHIRO ,  KAJI TAKASHI

IPC: B60K17/04 ,  B60K6/20 ,  B60K6/365 ,  B60K6/48 ,  B60K6/52 ,  B60K6/543 ,  B60L50/16 ,  B60W10/06 ,  B60W10/08 ,  B60W20/00 ,  F02D29/02 ,  F02D29/06 ,  B60L11/14 ,  B60K6/02

Abstract: PROBLEM TO BE SOLVED: To prevent an engine from stalling due to lowering down of its speed, when excessive running load on it, due to an obstacle or the like, in the case of running by operating together the engine and a motor generator connected to the planetary gears. SOLUTION: In the case of running by operating together an engine 14 and a motor generator 16 with a first clutch C1 and a first brake B1 released, while a second clutch C2 is engaged, whether there is a possibility of stalling by decreasing engine speed Ne or not is detected based on a change of the speed or the like, when there is a possibility of stalling, torque of the motor generator is temporarily decreased, a load acting in the engine 14 is reduced.

公开(公告)号：JP2001041062A

公开(公告)日：2001-02-13

申请号：JP21553899

申请日：1999-07-29

Applicant: TOYOTA MOTOR CORP

Inventor： KAMIOKA KIYOSHIRO

IPC: F02D9/02 ,  F02D13/02 ,  F02D41/12 ,  F02D41/16

Abstract: PROBLEM TO BE SOLVED: To provide an intake air quantity control device of an internal combustion engine which is an on-vehicle internal combustion engine furnished with a variable valve system and capable of more properly carrying out dashpot control at the time of decelerating a vehicle. SOLUTION: Starting time to damp (gradual decreasing operation) of intake air quantity secured for dashpot control, that is, dashpot quantity is normally set at total closing judgement time of a throttle valve. Hereby, damping of the dashpot quantity is started under a condition where a timing advance value becomes less than A deg.FR to eliminate residue of engine torque by monitoring the timing advance value of a variable valve system (variable valve timing mechanism) after total closing judgement of the throttle valve.

公开(公告)号：JPH11182301A

公开(公告)日：1999-07-06

申请号：JP35368797

申请日：1997-12-22

Applicant: TOYOTA MOTOR CORP

Inventor： KAMIOKA KIYOSHIRO

IPC: F02D29/02 ,  F02D29/04 ,  F02D41/16

Abstract: PROBLEM TO BE SOLVED: To provide an idling speed control valve for an internal combustion engine which can speedily converge the engine speed to a target value irrespective of abrupt or slow application of external load. SOLUTION: A steering 51 is operated at the time of idling an engine 1, and a power steering 52 is driven. An air amount is corrected, and supplied to the engine 1 through an idling speed control valve 41. The air is gradually corrected with a preset value serving as an upper limit guard value, so that the engine speed is kept as a target value. The upper limit guard value is set large when a variation rate of the engine speed sensed at the first time after starting the power steering 52 is large. The upper limit guard value is set small when the variation rate of the engine speed is small.